Redo memory strategy based of single-address space reserve mapping for the process

[Ed94]

MS Blog

This came about from doing Handmade Hero along with studying other content from the community.

Going to change the allocators to use a single address space, I'll reserve a mapping for with a max limit. The limit will be set via the gencpp::init along with the initial commit space. Default will be 4gb reserve and 1 gb commit.

The program will share a single address space for everything based on this commit so I'll offset the different general use cases for memory by that:

• Persistent ( Globals & String Cache )
• Code Transients ( AST & Parser Token Pools )
• String Transients ( dynamic strings )
• File Transients ( Bulk content read / write )

I'll hold off on this though until we have the dependent data allocation strategies down pact with regular heap allocation.